2022/day10.awk


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BEGIN {
	cycles = 1;
	X = 1;
}
function cycle() {
	if (cycles == 20 || (cycles-20) % 40 == 0) {
		sum += cycles * X;
	}
	crt[+x,+y] = ((X >= x-1 && X <= x+1) ? "#" : ".");
	if (++x == 40) {
		y++;
		x = 0;
	}
	cycles++;
}
/addx/ {
	cycle();
	cycle();
	X += $2;
}
/noop/ {
	cycle();
}
END {
	print sum;
	for (y = 0; y < 6; ++y) {
		for (x = 0; x < 40; ++x) {
			printf "%s", crt[x,y];
		}
		printf "\n";
	}
}